Steel-concrete construction.



Patenfed Nov. 4, !902.

No. 712,&25.

` c. wzaz.

STEEL- CONCRETE GONSTRUGTIOM (Application filed .Tung 19, 1902.)

(Ilo Model.)

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Nonms PEITRS co?. morra.

- objections arising from the use of the means 'better advantage, but the strains to which the UNTED l STATES- CARL W'EBER, OF ST. LOUIS, MISSOURI.

STEEL-CONCRETE' CONSTRUCTION SPECIFICATION forming part of Letters Patent No. 712, 625, dated. November 4, 1902.

Application filed June 12, 1902.

To all whom it ntcyconccrn:

Be it known that I, CARL WEBER, a subject of the Emperor of Germany, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Steel- Concrete Constructions, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

My invention has relation to improvements in steel-concrete constructions; and it consists in the novel arrangement and combination of parts more fully set forth in this specification, and pointedout in the claim.

In the drawings, Figure l is a plan of my invention, showing a portion thereof embedded in a layer of conerete. Fig. 2 isa section on line 2 2 of Fig. 1, the concrete being shown in section. Fig. 3 is a plan of one form of clamp used to secure the T-beams. Fig. 4 is a perspective showing two beans clamped together. Fig. 5 is a plan of a modified form of clamp, and lFig. 6 is a perspective of two beams tied with such modified clamp. u u

The present invention relates to steel-concrete constructions as applied to fioors, ceilings, walls, tanks, bridge-spans, arches, and the like, having for its object to overcome many of the objections inherent in Constructions employing girders of circular and square cross-section and those employing I-beams,

employed for tying such forms of girders together,and other objections due to the character of the girders themselves. In my system not only is the load sustained distributed to construction is subjected areresisted to better advantage. i w

In detail the invention may be described as follows:

Referring to the drawiugs, l l represent a series of T-beams intersecting one another at right angles, (in the majority of cases, though I do not wish to be` limited to said angles,) the flange of one beam being supported on the flange of the bean beneath it, the juxtaposition of the fianges forming one of the Vital features of my invention, since the up- Serial No. 111348. (Ne model.)

per series of beans and weight carried by them are thus supported on expanded surfaces or planes of contact, which is inpossible with the cylindrical form of bar or the I-bean or a combination of the two or with the square .beam having the same weight of metal. At the points of intersection the said T-beams are bound togethe'by clamps 2, (referring in particular to the form shown in Figs. 1, 2, 3, 4,) the clamp com prising a flexible metallic sheet enveloping the web and flange of the superposed beam and having wings 2', adapted to span the fiange of the lower beam, and extensions 2", enveloping'the edges or sides of the lower fianges, as best seen in Figs. 3 and 4.

In the modification shown in Figs. 5 and 6 the clamp 5 is interposed between the j uXtaposed flanges of the beams, twowings 5' of the original blank being subsequently turned Upward to envelop the `fianges of the upper beam and two wings 5 being bent downward to envelop the fianges of` the lower beam, as best appears in Figs. 5 and 6. The system of beams or girders thus tied together are ernbedded in a layer of concrete C, which is composed of Variable proportions of Portland cement, sand, and broken Stones, as is well understood in the art.

The word steel in the present description is of course used generically and includes any form of steel or iron.

Having described my invention, claim is-- y In a steel-concrete Construction, a series of what I intersecting'T-beams having their fianges contacting directly with one another, a clamp at the intersection of the beans enveloping the web and fiange of one beam, and having `wings spanning thelfiange of the adjacent beam, and extensions carried by said wings.

OARL WEBER.

Wtnesses:

EMIL STAnEK, G. L. BELFRY. 

